1 // { dg-do run } 2 // { dg-additional-options "-pthread" { target pthread } } 3 // { dg-require-effective-target c++11 } 4 // { dg-require-gthreads "" } 5 6 // Copyright (C) 2009-2021 Free Software Foundation, Inc. 7 // 8 // This file is part of the GNU ISO C++ Library. This library is free 9 // software; you can redistribute it and/or modify it under the 10 // terms of the GNU General Public License as published by the 11 // Free Software Foundation; either version 3, or (at your option) 12 // any later version. 13 14 // This library is distributed in the hope that it will be useful, 15 // but WITHOUT ANY WARRANTY; without even the implied warranty of 16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 // GNU General Public License for more details. 18 19 // You should have received a copy of the GNU General Public License along 20 // with this library; see the file COPYING3. If not see 21 // <http://www.gnu.org/licenses/>. 22 23 24 #include <future> 25 #include <testsuite_hooks.h> 26 test01()27void test01() 28 { 29 std::promise<int> p1; 30 std::promise<int> p2; 31 p1.set_value(1); 32 p1.swap(p2); 33 auto delay = std::chrono::milliseconds(1); 34 VERIFY( p1.get_future().wait_for(delay) == std::future_status::timeout ); 35 VERIFY( p2.get_future().wait_for(delay) == std::future_status::ready ); 36 } 37 main()38int main() 39 { 40 test01(); 41 return 0; 42 } 43